multientrylistboxtag.java

这是linux下ssl vpn的实现程序

/*
 *  SSL-Explorer
 *
 *  Copyright (C) 2003-2006 3SP LTD. All Rights Reserved
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU General Public License
 *  as published by the Free Software Foundation; either version 2 of
 *  the License, or (at your option) any later version.
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public
 *  License along with this program; if not, write to the Free Software
 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
			
package com.sslexplorer.input.tags;

import java.util.StringTokenizer;

import javax.servlet.jsp.JspException;

import org.apache.struts.taglib.TagUtils;

import com.sslexplorer.core.CoreUtil;

/**
 * Custom tag than renders a component that allows the user to entry some value
 * in a field, click on an <i>Add</i> button and have the value moved into a
 * second list field. Values may also be removed from the second list. *
 * <p>
 * Originally written to lists of users to be built up, this component is now
 * generic.
 * <p>
 * Values are passed between the component and the format implementation in
 * newline delimited <i>Property List</i> format. See
 * {@link com.sslexplorer.boot.PropertyList} for more details on this.
 * <p>
 * Titles may be provide for each side of the component using message resource
 * keys.
 * <h3>Supported Attributes</h3>
 * 
 * TODO document the supported attributes
 * 
 * @author Brett Smith <[e-mail]>
 */
public class MultiEntryListBoxTag extends AbstractMultiFieldTag {

    // Protected instance variables

    protected String entrySize;
    protected String entryTitleKey;
    protected String entryStyleClass;
    protected String entryName;
    protected String targetUnique;
    protected String indicator;
    protected boolean includeUserAttributes;
    protected boolean includeSession;
    protected boolean showReplacementVariables;
    protected String replacementVariablesTitleKey;
    protected String variables;
    protected String replacementVariablesBundle;

    /**
     * Constructor
     */
    public MultiEntryListBoxTag() {
        super();
        this.type = "hidden";
        targetUnique = "true";
        indicator = null;
        name = null;
        showReplacementVariables = false;
        replacementVariablesBundle = null;
        includeSession = true;
        includeUserAttributes = true;
        setStyleId("multiEntry");
        setRows("5");

    }

    /*
     * (non-Javadoc)
     * 
     * @see org.apache.struts.taglib.html.BaseFieldTag#doStartTag()
     */
    public int doStartTag() throws JspException {

        String entryTitle = null;
        if (entryTitleKey != null) {
            entryTitle = TagUtils.getInstance().message(pageContext, getBundle(), getLocale(), entryTitleKey, new String[] {});

            if (entryTitle == null) {
                JspException e = new JspException(messages.getMessage("message.message", "\"" + entryTitleKey + "\""));
                TagUtils.getInstance().saveException(pageContext, e);
                throw e;
            }
        }

        String targetTitle = prepareTargetTitle();

        StringBuffer results = new StringBuffer("<div ");
        results.append(prepareStyles());
        results.append(">");
        results.append(this.renderInputElement());
        results.append("<table cellpadding=\"0\" cellspacing=\"0\" border=\"0\">");
        if (entryTitle != null || targetTitle != null) {
            results.append("<tr class=\"header\"><td class=\"entry\">");
            if (entryTitle != null) {
                results.append(entryTitle);
            }
            results.append("</td><td class=\"actions\"/><td class=\"target\">");
            if (targetTitle != null) {
                results.append(targetTitle);
            }
            results.append("</td></tr>");
        }
        results.append("<tr class=\"body\"><td class=\"entry\">");
        results.append(renderEntryComponent());
        results.append("</td><td class=\"actions\"><table cellpadding=\"0\" cellspacing=\"0\" border=\"0\">");
        results.append("<tr><td>");
        results.append(renderAddComponent());
        results.append("</td></tr><tr><td>");
        results.append(renderRemoveSelectedComponent());
        if (isAllowReordering()) {
            results.append("</td></tr><tr><td>");
            results.append(renderUpComponent());
            results.append("</td></tr><tr><td>");
            results.append(renderDownComponent());
        }
        results.append("</td></tr></table></td><td class=\"target\">");
        results.append(renderTargetComponent());
        results.append("</td></tr></table></div>");
        TagUtils.getInstance().write(this.pageContext, results.toString());

        return (EVAL_BODY_BUFFERED);
    }

    /**
     * Get the size of the field to use for the entry side.
     * 
     * @return the entrySize.
     */
    public String getEntrySize() {
        return entrySize;
    }

    /**
     * Set the size of the field to use on the entry side.
     * 
     * @param entrySize size of entry field
     */
    public void setEntrySize(String entrySize) {
        this.entrySize = entrySize;
    }

    /**
     * Get the message resources key to use for the title on the entry side
     * 
     * @return message resources key for entry title
     */
    public String getEntryTitleKey() {
        return entryTitleKey;
    }

    /**
     * Set the message resources key to use for the title on the entry side
     * 
     * @param entryTitleKey message resources key for entry title
     */
    public void setEntryTitleKey(String entryTitleKey) {
        this.entryTitleKey = entryTitleKey;
    }

    /**
     * Set the CSS class to use for the entry field
     * 
     * @param entryStyleClass CSS class to use for entry field
     */
    public void setEntryStyleClass(String entryStyleClass) {
        this.entryStyleClass = entryStyleClass;
    }

    /**
     * Set the name attribute to use for the entry field
     * 
     * @param entryName name attribute use for entry field
     */
    public void setEntryName(String entryName) {
        this.entryName = entryName;
    }

    /**
     * Set the name of the <i>Indicator</i>. Using this in conjunction with
     * AjaxTags allows a throbber to be displayed whilst the XML data is being
     * retrieved.
     * <p>
     * The value of the indicator must match the value provided to the AjaxTags
     * autocomplete tag and there must also be an image with the same name (with
     * .gif append) in the themes top level image directory.
     * 
     * @param indicator indicator name
     */
    public void setIndicator(String indicator) {
        this.indicator = indicator;
    }

    /**
     * Set the messsage resources key to use for the title of the replacement
     * variables popup.
     * 
     * @param replacementVariablesTitleKey replacement variables title message
     *        resources key
     */
    public void setReplacementVariablesTitleKey(String replacementVariablesTitleKey) {
        this.replacementVariablesTitleKey = replacementVariablesTitleKey;
    }

    /**
     * Set the messsage resources bundle to use for the title of the replacement
     * variables popup and the descriptions of the replacement variables
     * themselves